| 摘要 |
PROBLEM TO BE SOLVED: To provide a damper device that absorbs vibration different according to a change of the number of deactivated cylinders. SOLUTION: The damper device 1-1 is installed in a vehicle which mounts an internal combustion engine capable of stopping combustion in part of cylinders. The device includes: a rotor 31 which links with an output shaft 11 of the internal combustion engine to rotate; first and second oscillating bodies 32 and 33 which are installed in the rotor and absorb a vibration of the rotor by performing a pendulum movement due to a rotational fluctuation of the rotor; and a switching mechanism 36 which switches operation states of the first and second oscillating bodies. The switching mechanism switches between: a first state where the first oscillating body performs the pendulum movement with respect to the rotor, while the second oscillating body supported by the rotor is taken as a support shaft; and a second state where the first oscillating body is fixed on the rotor, and the second oscillating body is rollably supported by at least either one of the first oscillating body or the rotor, then a movement of rolling second oscillating body is the pendulum movement with respect to the rotor. The switching of the operation states is performed according to the change of the number of the cylinders to be deactivated. COPYRIGHT: (C)2011,JPO&INPIT |
